Question

if a number is divisible by 9 then this number will also be divisible by 3?(yes/no)​

Answer 1

Answer:

Yes.

Step-by-step explanation:

Suppose x is divisble by 9 then for any k = 0, 1, 2 ...

x = 9k

x = 3.(3k)

thus, x is also divisible by 3.